CN102494288A - Light-emitting diode (LED) reflector lamp with fins capable of radiating heat - Google Patents

Light-emitting diode (LED) reflector lamp with fins capable of radiating heat Download PDF

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Publication number
CN102494288A
CN102494288A CN2011104401483A CN201110440148A CN102494288A CN 102494288 A CN102494288 A CN 102494288A CN 2011104401483 A CN2011104401483 A CN 2011104401483A CN 201110440148 A CN201110440148 A CN 201110440148A CN 102494288 A CN102494288 A CN 102494288A
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China
Prior art keywords
light
shot
radiating fins
cylindrical shell
cover
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Granted
Application number
CN2011104401483A
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Chinese (zh)
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CN102494288B (en
Inventor
杨勤忠
吴信仲
李永顺
李楠
陈桂花
陈和
陈赟赟
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SHANGHAI XINFENG ELECTRONICS CO Ltd
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SHANGHAI XINFENG ELECTRONICS CO Ltd
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Priority to CN2011104401483A priority Critical patent/CN102494288B/en
Publication of CN102494288A publication Critical patent/CN102494288A/en
Application granted granted Critical
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Abstract

The invention discloses a light-emitting diode (LED) reflector lamp with fins capable of radiating heat. The LED reflector lamp comprises a reflector lamp rear cover component, a core shaft component, a lamp panel, a light-reflecting cup and a reflector lamp front cover component, wherein the core shaft component comprises a core shaft cylinder and a plurality of radiating fins which are distributed on the outer peripheral surface of the core shaft cylinder uniformly; and an LED light-emitting chip is arranged on the lamp panel. The LED reflector lamp is characterized in that the reflector lamp rear cover component is clamped and connected with the upper part of the core shaft cylinder and the upper parts of the plurality of radiating fins; the lamp panel is fixed to the bottom of the core shaft cylinder and is wrapped by the plurality of radiating fins; and the reflector lamp front cover component is clamped and connected with the bottoms of the plurality of radiating fins, and the light-reflecting cup is clamped in an accommodating space formed by the lower part of the lamp panel and the lower parts of the plurality of radiating fins by the reflector lamp front cover component. In the process of assembling the LED reflector lamp, only the lamp panel is connected with the core shaft cylinder by a screw, and other parts can be clamped and connected directly without using the screw, so that the assembly efficiency is improved. Simultaneously, the temperature of the panel does not exceed 80 DEG C under the condition of no need of heat conduction of an aluminum substrate, so that materials are saved.

Description

A kind of fin cooling LED shot-light
Technical field
The present invention relates to LED shot-light technical field, particularly a kind of fin cooling LED shot-light.
Background technology
It is long that the semiconductor LED lighting source has the life-span, advantage such as energy-conservation, environmental protection, rich color and microminiaturization and be called as light source of future generation and receive much attention.Along with the continuous development of power-saving technology, the LED lamp will be the direction of following illuminating industry development.
Along with support and the popularization of country to the LED industry, LED spreads on the various lighting devices as the lighting page or leaf of light source gradually, and common have LED street lamp, LED Tunnel Lamp, LED fluorescent lamp, LED pendent lamp, LED projecting lamp or the like.
A principal element of present stage restriction LED light fixture technical development is dispelled the heat exactly, and industry is also constantly being improved the heat-dissipating structure of lighting.Like the disclosed LED lamp of Chinese patent CN200510011451.6, it dispels the heat through the mode that connects the heat radiation of piece plate in LED substrate bottom.But the radiating effect of this radiating mode is not fully up to expectations, and is very easily overheated and aging, influenced service life greatly.
And Chinese patent 200620131280.0 disclosed a kind of LED bulbs comprise a lamp holder, a radiator, a circuit arrangement and a LED lamp group, and above-mentioned radiator is to be combined between lamp holder and the LED lamp group, and the foregoing circuit device is arranged in the radiator.Said radiator is one to be provided with the hollow metallic conduit of a plurality of radiating fins; And the outside of said radiating fin is hidden by a skirt cover in addition encloses; Although fixedly the skirt cover can prevent to scald, clearly weakened the Natural Heat Convection intensity of original lamp body, radiating effect is also undesirable.
Chinese patent 201120104188.6 disclosed a kind of high-efficiency heat radiating LED projecting lamps; Comprise conducting strip, insulating part and lampshade; Conducting strip is used for whole lamp is combined in extraneous power supply, and insulating part one end connects conducting strip, and the other end connects lampshade; Accommodate the led light source assembly in the lampshade, lampshade combines for being intervally arranged by a plurality of independently radiating fins.Independently offer the through hole and the pit that increase area of dissipation on the radiating fin.Have the gap of the amount of maintaining the circulation of air between the lampshade radiating fin of the present invention, distribute speed though it has accelerated heat, the radiating effect packaging efficiency is still not ideal.
The LED transmission lamp that has the E27 conducting strip is an indoor application lighting more widely, and the heat radiation of this type of light fixture also is the problem of industry common concern.
Summary of the invention
Technical problem to be solved by this invention is a kind of good heat dissipation effect to be provided, the fin cooling LED shot-light that lamp body structure is compact to the existing existing deficiency of LED radiator structure.
Technical problem to be solved by this invention can realize through following technical scheme:
A kind of fin cooling LED shot-light; Comprise shot-light back cover part, core component, lamp plate, reflector and shot-light front cover member; Said core component comprises the mandrel cylindrical shell and is distributed in the some radiating fins on the said mandrel cylindrical shell outer peripheral face, the LED luminescence chip is installed on the said lamp plate; It is characterized in that said shot-light back cover part is connected with the top engaging of said mandrel cylindrical shell and is connected with the engaging of some radiating fins top; Said lamp plate is fixed on the bottom of mandrel cylindrical shell and is surrounded by some radiating fins; The bottom engaging of said shot-light front cover member and some radiating fins is connected and said reflector is snapped in the bottom, formed Bao Na space, some radiating fins bottom of lamp plate.
The top engaging of said shot-light back cover part and said mandrel cylindrical shell endoporus is connected and is connected with the engaging of some radiating fins top and is meant: the one-tenth circle distribution has the plurality of elastic trip in the bottom of said shot-light back cover part; And the outer periphery on said plurality of elastic grab top is equipped with one and holds the top holding tank at mandrel cylindrical shell top and some radiating fins top, and this top holding tank has the top rib that blocks some radiating fins top outer rim; Inner hole wall top at said mandrel cylindrical shell is provided with a ring-shaped groove, and collude in described ring-shaped groove the hook part of plurality of elastic trip; Close on tip position in each radiating fin outer rim and be provided with the breach that supplies said top rib to snap in, the top rib snaps in this breach.
The bottom engaging of said shot-light front cover member and some radiating fins is connected and bottom, some radiating fins bottom that said reflector snaps in lamp plate is meant in the formed Bao Na space: be provided with a groove at each radiating fin inner edge near bottom position; Said shot-light front cover member is provided with some trips; The outer periphery of some trips is equipped with the bottom holding tank that holds said some radiating fins bottom, and this bottom holding tank has the bottom rib that blocks some radiating fins bottom outer rim; Collude in described groove the hook part of some trips, and rib retaining in said bottom is in the outer rim of some radiating fins bottom; Be provided with annular inner flange limit in some trip inner edges bottom in addition; The bottom of margin of optic cup is provided with annular outward flange limit outside said reflector, conflicts said reflector is snapped in the bottom, formed Bao Na space, some radiating fins bottom of lamp plate in annular inner flange limit and annular outward flange limit.
In a preferred embodiment of the invention, on the outer peripheral face of said mandrel cylindrical shell, be evenly equipped with somely along the axially extended draw-in groove of mandrel cylindrical shell, each radiating fin inner edge top snaps in the described draw-in groove; Between adjacent two draw-in grooves, be evenly equipped with some along the axially extended radiation tooth of mandrel cylindrical shell.
In a preferred embodiment of the invention; Offer two conductive pole installing holes at the top of said shot-light back cover part; And on the top of said shot-light back cover part the cylinder section inner wall even distribution has some convex arc sections; Be placed with circuit board at said some convex arc section seats, said circuit board on the one hand be installed in said conductive pole installing hole in conductive pole be electrically connected, be electrically connected with said lamp plate on the other hand.
In a preferred embodiment of the invention, the bottom land of holding tank is evenly equipped with some bottom vents in the bottom of said shot-light front cover member; On said shot-light back cover part, also offer some top portion ventilation hole.
In a preferred embodiment of the invention, punching out has some transversal ventilations hole on each radiating fin.
In a preferred embodiment of the invention, said lamp plate is made up of the FR4 copper-clad plate, and wherein the FR4 copper-clad plate contacts with the heat conduction of mandrel cylindrical shell, and said mandrel cylindrical shell and radiating fin adopt aluminum to process; The thickness of said radiating fin is 0.6mm, and the central angle between adjacent two radiating fins is 12 degree.
After adopting technique scheme, in the assembling of the present invention only between lamp plate and mandrel cylindrical shell the employing screw be connected, remainder need not adopt screw just can directly engage connection, has improved packaging efficiency.Simultaneously owing to adopt radiating fin to be provided with at interval and bottom vents be set on the shot-light front cover member and the top portion ventilation hole be set on the shot-light back cover part and radiation tooth be set at the outer peripheral face of mandrel cylindrical shell; Make that flow air is taken away the heat that radiation tooth, radiating fin distributed of mandrel cylindrical shell rapidly between the radiating fin; Accelerate heat greatly and distributed speed; Improved radiating efficiency; Make the present invention need not adopt aluminium base heat conduction, can guarantee that also the temperature on the lamp plate is no more than 80 ℃, saved material.
Description of drawings
Fig. 1 is the structural representation of fin cooling LED shot-light of the present invention.
Fig. 2 is the upward view of Fig. 1.
Fig. 3 is the structural representation of mandrel cylindrical shell of the present invention.
Fig. 4 is the temperature curve sketch map of lamp plate of the present invention.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with accompanying drawing, further set forth the present invention.
Referring to Fig. 1 and Fig. 2, a kind of fin cooling LED shot-light shown in the figure comprises shot-light back cover part 100, core component 200, lamp plate 300, reflector 400 and shot-light front cover member 500.
In conjunction with referring to Fig. 3; Core component 200 comprises the mandrel cylindrical shell 210 that adopts aluminum to process; On the outer peripheral face of mandrel cylindrical shell 210, be evenly equipped with 30 along mandrel cylindrical shell 210 axially extended draw-in grooves 211, be evenly equipped with two between adjacent two draw-in grooves 211 along mandrel cylindrical shell 210 axially extended radiation tooths 212.The width of draw-in groove 211 is 0.6mm, and the central angle between adjacent two draw-in grooves 211 is 12 degree.30 radiating fins 220 so just can be installed.Be provided with a ring-shaped groove 213 on the inner hole wall top of mandrel cylindrical shell 210.
Every radiating fin 220 adopts the aluminium sheet punching out behind the 0.6mm to form; The arcuate structure of its outer rim 221; Three sections staged inner edges of interior cause 222,223,224 constitute; Close on tip position in the outer rim 221 of each radiating fin 220 and be provided with a breach 225, be provided with a groove 222 at the root of each radiating fin 220 bottom staged inner edges 224.In the transversal ventilation hole 226 that each radiating fin 220 punching out has two one-tenth to arrange up and down.
Shot-light back cover part 100 is made up of a conical cylinder section 110 and a spherical crown section 120; The top seal of conical cylinder section 110; The bottom is connected as a single entity with the top of spherical crown section 120; Conical cylinder section 110 is hollow structure with spherical crown section 120 inside, offers two conductive pole installing holes 111 at the top of conical cylinder section 110, and live wire conductive pole (not shown) and zero line conductive pole (not shown) are installed in these two conductive pole installing holes 111.On the inner tube wall of conical cylinder section 110, be evenly equipped with 112, two convex arc sections 112 of two convex arc sections in order to shelve the circuit board (not shown).Live wire conductive pole (not shown) and zero line conductive pole (not shown) are electrically connected with the circuit board (not shown).
Be evenly equipped with three elastic fastening hooks 130 in the bottom of spherical crown section 120; And the outer periphery on three elastic fastening hook 130 tops is equipped with one and holds the top holding tank 140 at mandrel cylindrical shell 210 tops and some radiating fins 120 tops, and this top holding tank 140 has the top rib 150 of the breach 221 that blocks some radiating fin 120 top outer rims.On the sphere of spherical crown section 120, offer some top portion ventilation hole (not shown).
Lamp plate 300 is processed by the FR4 copper-clad plate, and LED luminescence chip (not shown) is installed in the FR4 copper-clad plate.
Shot-light front cover member 500 is one to have the circulus body 510 of loophole; Be evenly equipped with upwardly extending some trips 520 at the edge of loophole; The outer periphery of some trips 520 is equipped with a bottom holding tank 530, and bottom holding tank 530 has a bottom rib 531.In addition at the edge of loophole, some trips 520 inner edges bottom is provided with annular inner flange limit 540.The bottom of margin of optic cup is provided with annular outward flange limit 410 outside reflector 400.The bottom land of holding tank 530 is evenly equipped with a plurality of bottom vents 532 in the bottom.
The assembling procedure of fin cooling LED shot-light of the present invention is following: at first the staged inner edge 222 with 30 radiating fins 220 snaps onto in 30 clamp bar slots 211 on mandrel cylindrical shell 210 outer peripheral faces; Because the thickness of radiating fin 220 is suitable with the width of draw-in groove 211; Both tight fits; Such 30 radiating fins 220 just can be fixed on mandrel cylindrical shell 210 outer peripheral faces in uniform way, and the central angle between adjacent two radiating fins is 12 degree.Central angle between adjacent two radiating fins is that 12 degree can access suitable air velocity, to take away the heat of more crossing.Be inserted into three elastic fastening hooks 130 on the shot-light back cover part 100 in the endoporus of mandrel cylindrical shell 210 by mandrel cylindrical shell 210 tops then and the hook part of three elastic fastening hooks 130 is colluded in the ring-shaped groove 213; At this moment mandrel cylindrical shell 210 tops and 30 radiating fin 220 tops just in time are inserted in the top holding tank 140 on the shot-light back cover part 100, and the top rib 150 of top holding tank 140 just in time blocks the breach 225 at 30 radiating fin 220 outer rim tops.
Then lamp plate 300 is electrically connected with lead with circuit board again, then lamp plate 300 is fixed on the bottom of mandrel cylindrical shell 210, lamp plate 300 is contained in the staged inner edge 223 formed Bao Na spaces of 30 radiating fins 220 with screw.But also can utilize lamp plate 300 with staged inner edge 222 contacting of lower surface with 30 radiating fin 220 axial restraint on mandrel cylindrical shell 210.
The last reflector 400 of in the staged inner edge 223 formed Bao Na spaces of 30 radiating fins 220, placing; And the some trips 520 on the shot-light front cover member 500 from bottom to top are inserted in the staged inner edge 224 formed Bao Na spaces of 30 radiating fins 220; After the hook part of some trips 520 was inserted in the groove 222 of staged 224 roots of 30 radiating fins 220, the bottom of 30 radiating fins 220 also just in time was inserted in the bottom holding tank 530 and is blocked and receive radially restriction by bottom rib 531.Whole like this fin cooling LED shot-light just assembles.
In the assembling of the present invention only between lamp plate 300 and mandrel cylindrical shell 210 the employing screw be connected, remainder need not adopt screw just can directly engage connection, has improved packaging efficiency.
Under the synergy of the factors such as radiation tooth of the radiating fin 220 that the present invention is provided with through the interval, the bottom vents 530 on the shot-light front cover member 500, the top portion ventilation hole on the shot-light back cover part 100, mandrel cylindrical shell 210; Can guarantee that lamp plate 300 is under the situation that does not need aluminium base heat conduction; Can not surpass 80 ℃ (referring to Fig. 4) yet; Therefore compared with prior art saved material, cost reduces.
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification just explains principle of the present invention; The present invention also has various changes and modifications under the prerequisite that does not break away from spirit and scope of the invention, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.

Claims (8)

1. fin cooling LED shot-light; Comprise shot-light back cover part, core component, lamp plate, reflector and shot-light front cover member; Said core component comprises the mandrel cylindrical shell and is distributed in the some radiating fins on the said mandrel cylindrical shell outer peripheral face, the LED luminescence chip is installed on the said lamp plate; It is characterized in that said shot-light back cover part is connected with the top engaging of said mandrel cylindrical shell and is connected with the engaging of some radiating fins top; Said lamp plate is fixed on the bottom of mandrel cylindrical shell and is surrounded by some radiating fins; The bottom engaging of said shot-light front cover member and some radiating fins is connected and said reflector is snapped in the bottom, formed Bao Na space, some radiating fins bottom of lamp plate.
2. fin cooling LED shot-light as claimed in claim 1; It is characterized in that; The top engaging of said shot-light back cover part and said mandrel cylindrical shell endoporus is connected and is connected with the engaging of some radiating fins top and is meant: the one-tenth circle distribution has the plurality of elastic trip in the bottom of said shot-light back cover part; And the outer periphery on said plurality of elastic grab top is equipped with one and holds the top holding tank at mandrel cylindrical shell top and some radiating fins top, and this top holding tank has the top rib that blocks some radiating fins top outer rim; Inner hole wall top at said mandrel cylindrical shell is provided with a ring-shaped groove, and collude in described ring-shaped groove the hook part of plurality of elastic trip; Close on tip position in each radiating fin outer rim and be provided with the breach that supplies said top rib to snap in, the top rib snaps in this breach.
3. fin cooling LED shot-light as claimed in claim 1; It is characterized in that; The bottom engaging of said shot-light front cover member and some radiating fins is connected and bottom, some radiating fins bottom that said reflector snaps in lamp plate is meant in the formed Bao Na space: be provided with a groove at each radiating fin inner edge near bottom position; Said shot-light front cover member is provided with some trips; The outer periphery of some trips is equipped with the bottom holding tank that holds said some radiating fins bottom, and this bottom holding tank has the bottom rib that blocks some radiating fins bottom outer rim; Collude in described groove the hook part of some trips, and rib retaining in said bottom is in the outer rim of some radiating fins bottom; Be provided with annular inner flange limit in some trip inner edges bottom in addition; The bottom of margin of optic cup is provided with annular outward flange limit outside said reflector, conflicts said reflector is snapped in the bottom, formed Bao Na space, some radiating fins bottom of lamp plate in annular inner flange limit and annular outward flange limit.
4. like the described fin cooling LED of each claim of claim 1 to 3 shot-light; It is characterized in that; On the outer peripheral face of said mandrel cylindrical shell, be evenly equipped with somely along the axially extended draw-in groove of mandrel cylindrical shell, each radiating fin inner edge top snaps in the described draw-in groove; Between adjacent two draw-in grooves, be evenly equipped with some along the axially extended radiation tooth of mandrel cylindrical shell.
5. like the described fin cooling LED of each claim of claim 1 to 3 shot-light; It is characterized in that; Offer two conductive pole installing holes at the top of said shot-light back cover part, and the cylinder section inner wall even distribution there are some convex arc sections on the top of said shot-light back cover part, are placed with circuit board at said some convex arc section seats; Said circuit board on the one hand be installed in said conductive pole installing hole in conductive pole be electrically connected, be electrically connected with said lamp plate on the other hand.
6. like the described fin cooling LED of each claim of claim 1 to 3 shot-light, it is characterized in that the bottom land of holding tank is evenly equipped with some bottom vents in the bottom of said shot-light front cover member; On said shot-light back cover part, also offer some top portion ventilation hole.
7. like the described fin cooling LED of each claim of claim 1 to 3 shot-light, it is characterized in that punching out has some transversal ventilations hole on each radiating fin.
8. like the described fin cooling LED of each claim of claim 1 to 3 shot-light, it is characterized in that said lamp plate is made up of the FR4 copper-clad plate, wherein the FR4 copper-clad plate contacts with the heat conduction of mandrel cylindrical shell, and said mandrel cylindrical shell and radiating fin adopt aluminum to process; The thickness of said radiating fin is 0.6mm, and the central angle between adjacent two radiating fins is 12 degree.
CN2011104401483A 2011-12-23 2011-12-23 Light-emitting diode (LED) reflector lamp with fins capable of radiating heat Active CN102494288B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104534326A (en) * 2014-12-25 2015-04-22 中国科学院工程热物理研究所 Rectangular light distribution device for high power LED lamp

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104534326A (en) * 2014-12-25 2015-04-22 中国科学院工程热物理研究所 Rectangular light distribution device for high power LED lamp

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